Cloudy hot tub water has a short list of causes, and most of them are fixable in under an hour. This guide ranks them by how often they actually happen and walks you through each fix with specific numbers – no guesswork required.
Cloudy hot tub water is one of the most common problems hot tub owners run into, and it almost always traces back to one of three things: chemistry, filtration, or bather load. This guide walks you through how to diagnose the cause and clear it up fast, without guessing.
Cloudy hot tub water usually comes down to four culprits: low sanitizer, unbalanced pH or alkalinity, high calcium hardness, or a clogged filter. Testing your water and working through the causes in order will clear it up faster than dumping in clarifier and hoping for the best.